Burner.



G. I. LINDAU.

BURNER.

APPLICATION FILED DEG. 14, 1914.

1,131,? 18. Patented Mar.16 1915.

Wiknzoow CHARLES I. LINDAU, OF PEARCE, ARIZONA.

BURNER.

Application filed December 14, 1914.

To all whom it may concern:

Be it lmown that I, CHARLES I. LINDAU, a citizen of the United States, residing at Pearce, in the county of Cochise and btate of Arizona, have invented certain new and useful Improvements in Burners, of which the following is a specification.

My invention relates to improvements in gasified fuel burners, and more particularly to such apparatus having means to atomize and gasify, by a preferably heated moving gas or gaseous mixture, liquid fuel, prior to supplying the ultimate mixture to the burner-member.

An important object of the invention is to provide apparatus of the above mentioned character, which is simple in construction, inexpensive to manufacture, and convenient in use.

A further object of the invention is to provide an adjustable burner tip for regulating the size of the flame and for deflecting the same in the proper direction.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure l is a central longitudinal sectional view through apparatus embodying my in vention, Fig. 2 is an end elevation of a liquid fuel discharge nozzle, and, Fig. 3 is a side elevation of the burner tip.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 5 designates an expansion shell or chamber, having its forward end closed by a cap 6, preferably having screw-threaded engagement therewith. Preferably having screw-threaded engagement with the shell 5 is a mixing shell or chamber 7, having a reduced end 8, as shown. This mixing shell or chamber 7 has a laterally extending tube or nipple 9, as shown.

The numeral 10 designates a liquid fuel supply pipe, preferably formed in two parts, having screw-threaded engagement within the reduced portion 8 of the mixing chamber 7. The forward end of the liquid fuel supply pipe 10 extends axially within the mixing chamber 7 and has preferably screwthreaded engagement with the enlarged end of a spray-nozzle 11, provided upon its in- Specification of Letters Patent.

Patented Mar. 16, 1915. Serial No. 877,151.

ner surface with spirally arranged grooves or ports 13, adapted to discharge or spray the liquid fuel rearwardly in a spiral man ner, into the vaporizing chamber 7. Connected with the rear end of the liquid fuel supply pipe 10 is a coupling 1%, provided with a laterally extending tube or nipple 15 adapted for connection with a pipe for supplying the liquid fuel thereto, such as oil or the like.

Extending axially through the liquid fuel supply pipe 10 is an atomizing gas supply pipe 16, through which a heated gas or gaseous mixture, such as steam, air, or a mixture thereof, under pressure, is fed. This atomizing gas supply pipe 16 is preferably formed in two parts, having screw-threaded engagement with the reduced portion or end of the spray nozzle 10, through which the same extends, as shown. The forward end of the pipe 16 extends axially within the expansion chamber 5, with its discharge end spaced asubstantial distance from the head 6. A stufling box 14: of any well known or preferred type is secured to the rear end of the coupling 14 and receives the pipe 16, to prevent leakage. 1

Having screw-threaded engagement within the tube or nipple 9 is a cup-shaped or tubular adjustable burner 17, provided with a gas outlet 18, as shown. Having screwthreaded engagement with the screw-threaded portion of the cupshaped or tubular burner 17 is a locking nut 19, having its outer side 20 beveled, the angle of which may be varied according to the direction in which it is desired to deflect the flame produced by the burning gas discharging through the opening 18. It is thus apparent that by proper manipulation of the locking nut 19 and the turning of the tubular burner 17, the opening 18 may be partly covered and uncovered, thus regulating the amount of gas discharging therefrom.

The operation of the burner is as follows: Oil or other liquid fuel under suitable pressure is supplied to the pipe 10, and traveling forwardly therein and passing through the spiral passages or ports 13, is sprayed rearwardly, in a spiral manner, into the mixing chamber 7. Steam or compressed air or preferably a mixture of the two, under suitable pressure, is supplied to the inner pipe 16, the same traveling forwardly therein and discharging from the forward end of this pipe. The heat from the steam heats the oil prior to its passage through the spray nozzle. This heated gaseous mixture, under pressure, discharges into the chamber 5, and expanding therein moves rearwardly with considerable velocity, coming in contact with the spirally moving sprays of oil from the passages 13. This gaseous mixture atomizes and gasifies the oil and forms therewith a gas or gaseous mixture which is finally fed to the burner 17. This gas passes through the opening 18 where it is finally ignited, such passage being regulated by the adjustment of the looking nut 19 and tubular burner 17, ashereinabove stated.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention I claim 1. In a burner of the character described, an expansion chamber, a mixing chamber connected with the expansion chamber and having free communication therewith, a liquid fuel supply pipe extending into the mixing chamber, a spray nozzle connected with the outlet end of the liquid fuel supply pipe and discharging into the mixing chamber, an atomizing gas or gaseous mixture supply pipe extending through the liquid fuel supply pipe and discharging into the expansion chamber, and a burner-member having means of communication with the mixing chamber to receive gas therefrom.

2. In a burner of the character described, an expansion chamber having one end closed and its opposite end open, a mixing chamber connected with the open end of the expan- Copies of ply pipe and discharging into the expansion chamber at a point remote from the spray nozzle, and a burner-member having means of communication with the mixing chamber to receive gas therefrom.

3. In a burner of the character described, a shell, an outer pipe leading into the shell to supply a liquid fuel thereto, a spray nozzle connected with the. outlet end of the outer pipe and having spiral discharge passages, an inner pipe extending through the outer pipe and discharging a gas or gaseous mixture under pressure into the shell, and a burner-member having means of communi cation with the shell.

4:. In a burner of the character described,

a shell comprising a forward expansion chamber and a rear mixing chamber, an outer pipe extending axially through the mixing chamber, a spray nozzle connected with the forward end of the outer pipe and provided with rearwardly discharging spiral outlet passages discharging into the mixing chamber, an inner pipe extending axially through the outer pipe and spray nozzle and discharging into the expansion chamber, and a burner-member connected with the mixing chamber.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES I. LINDAU. \Vitnesses:

GEORGE W. FLEETHAM, WiLLIAM D.-MONMONIER, Jr.

this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. r 

